| Raw oil | Raw oil | 0% acid | 0% acid | 5% acid | 5% acid | 10% acid | 10% acid | 20% acid | 20% acid |
Metal/ppm | Fe | Cu | Fe | Cu | Fe | Cu | Fe | Cu | Fe | Cu |
Sunflower | 1.70 | 0.25 | 1.60 | 0.23 | 1.40 | 0.21 | 1.00 | 0.19 | 0.90 | 0.10 |
Palm oil | 3.10 | 0.07 | 1.65 | 0.06 | 1.20 | 0.04 | 1.00 | 0.04 | 1.00 | 0.04 |
Cotton oil | 2.60 | 0.35 | 2.23 | 0.32 | 2.10 | 0.26 | 1.90 | 0.20 | 1.21 | 0.10 |